Jeff Marquez vs. Allan Simpson — Career Comparison

Looking at the career totals, Jeff Marquez and Allan Simpson are fairly close on the surface numbers. Jeff Marquez posted stronger numbers in ERA (5.4 vs 6.06) and WHIP (1.400 vs 1.694). Allan Simpson had the advantage in home runs allowed (0.92 per nine innings vs 1.8). By the career numbers, Jeff Marquez had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.